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13123210023312 = 243435176282607
BaseRepresentation
bin1011111011110111110001…
…0001011001000110010000
31201110120022001220012221020
42332331330101121012100
53210002313231221222
643524415222555440
72523056243461344
oct276757421310620
951416261805836
1013123210023312
1141aa581a33944
12157b448598b80
13742689c1065c
14335249805624
1517b57136a65c
hexbef7c459190

13123210023312 has 40 divisors (see below), whose sum is σ = 33902410333056. Its totient is φ = 4374302123136.

The previous prime is 13123210023247. The next prime is 13123210023323. The reversal of 13123210023312 is 21332001232131.

It is a super-3 number, since 3×131232100233123 (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052488 + ... + 5230119.

Almost surely, 213123210023312 is an apocalyptic number.

13123210023312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13123210023312 is an abundant number, since it is smaller than the sum of its proper divisors (20779200309744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123210023312 is a wasteful number, since it uses less digits than its factorization.

13123210023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326135 (or 6326129 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13123210023312 its reverse (21332001232131), we get a palindrome (34455211255443).

The spelling of 13123210023312 in words is "thirteen trillion, one hundred twenty-three billion, two hundred ten million, twenty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 43517 87034 130551 174068 261102 348136 522204 696272 1044408 2088816 6282607 12565214 18847821 25130428 37695642 50260856 75391284 100521712 150782568 301565136 273400208819 546800417638 820200626457 1093600835276 1640401252914 2187201670552 3280802505828 4374403341104 6561605011656 13123210023312